Believers from the earliest years of Christianity—especially those coming out of Judaism—struggled with how to understand the relationship between Israel’s worship, Christian worship, and the real worship of heaven. In fact, the confusion escalated to such a point that some apostatized from Christianity in favor of returning to the worship of their Jewish heritage.The book of Hebrews functions as the New Testament’s supreme answer to this fundamental problem, which was written specifically to warn those Christian converts tempted to return to Jewish worship. And in particular, what the book of Hebrews reveals is that the proper relationship between worship as it was in the beginning and worship as it is now is found in our present relationship to the worship of world without end.